diff --git a/go.mod b/go.mod
index 28510d3..979e39b 100644
--- a/go.mod
+++ b/go.mod
@@ -3,8 +3,8 @@ module github.com/issue9/mux/v7
 require (
 	github.com/issue9/assert/v4 v4.1.1
 	github.com/issue9/errwrap v0.3.2
-	github.com/issue9/sliceutil v0.15.1
-	github.com/issue9/source v0.8.2
+	github.com/issue9/sliceutil v0.16.0
+	github.com/issue9/source v0.8.3
 )
 
 require golang.org/x/mod v0.16.0 // indirect
diff --git a/go.sum b/go.sum
index e259223..93858d6 100644
--- a/go.sum
+++ b/go.sum
@@ -2,9 +2,9 @@ github.com/issue9/assert/v4 v4.1.1 h1:OhPE8SB8n/qZCNGLQa+6MQtr/B3oON0JAVj68k8jJl
 github.com/issue9/assert/v4 v4.1.1/go.mod h1:v7qDRXi7AsaZZNh8eAK2rkLJg5/clztqQGA1DRv9Lv4=
 github.com/issue9/errwrap v0.3.2 h1:7KEme9Pfe75M+sIMcPCn/DV90wjnOcRbO4DXVAHj3Fw=
 github.com/issue9/errwrap v0.3.2/go.mod h1:KcCLuUGiffjooLCUjL89r1cyO8/HT/VRcQrneO53N3A=
-github.com/issue9/sliceutil v0.15.1 h1:mV1VlQSO5E8sh2ab6pypLg7TdgGZlDb30E8quli01xY=
-github.com/issue9/sliceutil v0.15.1/go.mod h1:ldun6sT4/bOJxuMtOXhtc6P7GCwE7L+avV86HNks7qk=
-github.com/issue9/source v0.8.2 h1:D8m8cZNvtp+cqkLVbMM/nUeO/5+e6KAhik6ogh/XX4g=
-github.com/issue9/source v0.8.2/go.mod h1:PGSqeWtxDypSLMenKsq1Uehv/HCCyy3htkDS7rRCX6o=
+github.com/issue9/sliceutil v0.16.0 h1:+gyumWF126mprQLiUi14s6SAeucMg1vuyPEh66VTtC8=
+github.com/issue9/sliceutil v0.16.0/go.mod h1:ldun6sT4/bOJxuMtOXhtc6P7GCwE7L+avV86HNks7qk=
+github.com/issue9/source v0.8.3 h1:MH883uljg0fupE/qkqJm3RqA5/l40KR+HsR7Mp3zjYY=
+github.com/issue9/source v0.8.3/go.mod h1:H0Joo5go08sIMODLvQXpWwiWpGrH2MiTMFhKBZhVbH8=
 golang.org/x/mod v0.16.0 h1:QX4fJ0Rr5cPQCF7O9lh9Se4pmwfwskqZfq5moyldzic=
 golang.org/x/mod v0.16.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
diff --git a/option_test.go b/option_test.go
index f9714ac..99154bb 100644
--- a/option_test.go
+++ b/option_test.go
@@ -11,6 +11,7 @@ import (
 	"net/http/httptest"
 	"strings"
 	"testing"
+	"time"
 
 	"github.com/issue9/assert/v4"
 	"github.com/issue9/assert/v4/rest"
@@ -53,6 +54,8 @@ func TestRecovery(t *testing.T) {
 
 	p := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { panic("panic test") })
 
+	// 未指定 Recovery
+
 	router := newRouter("")
 	a.NotNil(router).Nil(router.recoverFunc)
 	router.Get("/path", p)
@@ -68,13 +71,16 @@ func TestRecovery(t *testing.T) {
 	router = newRouter("", WriteRecovery(404, out))
 	a.NotNil(router).NotNil(router.recoverFunc)
 	router.Get("/path", p)
-	a.NotPanic(func() {
-		w := httptest.NewRecorder()
-		r := rest.Get(a, "/path").Request()
+
+	w := httptest.NewRecorder()
+	r := rest.Get(a, "/path").Request()
+	a.Go(func(a *assert.Assertion) {
 		router.ServeHTTP(w, r)
-		a.Contains(out.String(), "panic test").
-			Equal(w.Code, 404)
-	})
+	}).
+		Wait(time.Microsecond*500).
+		Contains(out.String(), "panic test", out.String()).
+		Contains(out.String(), "option_test.go:55", out.String()).
+		Equal(w.Code, 404)
 
 	// LogRecovery
 
@@ -91,7 +97,7 @@ func TestRecovery(t *testing.T) {
 		lines := strings.Split(out.String(), "\n")
 		a.Contains(lines[0], "panic test")                                 // 保证第一行是 panic 输出的信息
 		a.Contains(lines[1], "TestRecovery.func1")                         // 保证第二行是 panic 函数名
-		a.True(strings.HasSuffix(lines[2], "option_test.go:54"), lines[2]) // 保证第三行是 panic 的行号
+		a.True(strings.HasSuffix(lines[2], "option_test.go:55"), lines[2]) // 保证第三行是 panic 的行号
 	})
 
 	// StatusRecovery
diff --git a/types/context.go b/types/context.go
index aa9a7c8..c859cc3 100644
--- a/types/context.go
+++ b/types/context.go
@@ -9,12 +9,7 @@ import (
 	"sync"
 )
 
-// Context.Keys 的长度小于此值时才回收
-const destroyMaxSize = 30
-
-var contextPool = &sync.Pool{
-	New: func() any { return &Context{} },
-}
+var contextPool = &sync.Pool{New: func() any { return &Context{} }}
 
 // Context 保存着路由匹配过程中的上下文关系
 //
@@ -54,6 +49,7 @@ func (ctx *Context) Node() Node { return ctx.node }
 func (ctx *Context) RouterName() string { return ctx.routerName }
 
 func (ctx *Context) Destroy() {
+	const destroyMaxSize = 30
 	if ctx != nil && len(ctx.keys) <= destroyMaxSize {
 		contextPool.Put(ctx)
 	}